The Declassification Engine: Reading Between the Black Bars : The New Yorker
▻http://www.newyorker.com/online/blogs/elements/2013/10/the-declassification-engine-reading-between-the-black-bars.html
the Declassification Engine (...) has “gotten to the point where we can see it might be possible to predict content of redacted text.
▻http://www.newyorker.com/online/blogs/elements/nsa-docs-580.jpeg
#lol yes…
Le Manuel du caviardage de la NSA…
The rise of born-digital documents has brought new challenges: in 2009, the N.S.A. released an updated version of “Redacting with Confidence,” its how-to guide for the declassification of digital documents. The manual emphasizes a new set of actions; when working with a word processor, sanitizers must delete sensitive content, replace it with “innocuous text” to preserve formatting, and only then cover the innocuous text with a digitally drawn black—or, as it recommends, gray—box. “Complex file formats offer substantial avenues for hidden data,” it warns. “Once a user enters data into the document, effectively removing it can be difficult.”
Ici, c’est la version de 03/2008 (pour Word 2007 et la production de pdf avec Acrobat)
▻http://www.nsa.gov/ia/_files/support/i733-028r-2008.pdf
On trouve facilement des versions précédentes et, sur WP ▻http://en.wikipedia.org/wiki/Sanitization_(classified_information) , en note, la version de 2011 pour Acrobat X. Je n’ai pas trouvé plus récent.
et aussi #metadata #métadonnées
Together with a group of historians, computer scientists, and statisticians, Connelly is developing an ambitious project called the Declassification Engine, which, among other things, employs machine-learning and natural language processing to study the semantic patterns in declassified text. The project’s goals range from compiling the largest digitized archive of declassified documents in the world to plotting the declassified geographical metadata of over a million State Department cables on an interactive global map, which the researchers hope will afford them new insight into the workings of government secrecy.
